The formula for gravitational potential energy is Ep= mgh. Lets convert 594 km into m: 594 x 1,000 = 594,000 m. So we do: Ep= (1,800kg)(9.8N/kg)(594,000m) = (17,640N)(594,000) = 10,478,160,000 J.
I guess technically it does.
But the only reason I know of that it should is the relativistic increase
of mass with speed ... that's why we never notice the increase at
everyday speeds.
The effect gets larger at higher speeds. For example, if the car is
cruising through the neighborhood at 6.71 million miles per hour
(1% the speed of light), then its mass, and therefore its weight,
is 0.005% more than when it's sitting still at a red light.
Now, if the driver were to put the pedal to the metal and open 'er up
to 10% the speed of light, then the car's mass (and the driver's mass
too) would increase to a whopping 0.5% more than its 'rest mass'.
So you would definitely have to say that the vehicle does get heavier
as it speeds up.
Answer:
size of popcorn seed may meet the scaled earth size of x = 0.07312 in.
Explanation:
Given:-
- The diameter of actual sun, Ds = 1.3927 * 10^6 km
- The diameter of model sun ball, ds = 8 in
- The diameter of the actual earth, De = 12,742 km
Find:-
How large would be the earth model
Solution:-
- We can use the actual diameters of the earth and sun to develop the ratio of earth diameter to that of sun. The direct ratio can be used to model the diameter of earth for the scale model
Sun Earth
Actual : 1392700 km 12,742 km
Scale : 8 in x
- Use direct relations and solve for x:
x = (8 in)*(12,742 km ) / ( 1392700 km )
x = 0.07312 in.
- From the given options apple, grapefruit and marble diameters are larger than 1 inch. So only the size of popcorn seed may meet the scaled earth size of x = 0.07312 in.
Answer:350.92 KJ/kg
Explanation:
Given the process is reversible adiabatic i.e it is isentropic
From steam table
For isentropic process
at
Therefore Work output of the turbine per unit mass of steam is =
=3317.03-2966.11
=350.92 KJ/kg